Reinforced concrete lightweight wallboard and preparation method thereof

Abstract

The invention discloses a reinforced concrete lightweight wallboard and a preparation method thereof, and belongs to the field of concrete. The lightweight reinforced concrete wallboard is mainly prepared from Portland cement and is mainly prepared from the following components in parts by weight: 20 to 30 parts of EPS (Expandable Polystyrene) polyphenyl granules, 70 to 110 parts of Portland cement, 100 to 120 parts of ceramsite, 50 to 70 parts of pottery sand, 7 to 12 parts of water, 0.05 to 0.1 part of foaming agent, 1 to 5 parts of fiber, 0.5 to 2 parts of retarder and 2 to 5 parts of additive. The foaming agent comprises triethyl propanolamine, hydroxypropyl methyl cellulose and sodium dodecyl benzene sulfonate, the retarder comprises natural gypsum and calcium carbonate, the additive comprises ferroferric oxide and sodium abietate, and the lightweight concrete wallboard obtained through the method is small in density, high in strength and remarkable in sound insulation and heat insulation effect and can be widely applied to the field of building materials. The reinforcing steel bars and the lightweight concrete are combined, and a bread type honeycomb structure is formed inside. And the effects of heat preservation and sound insulation are achieved through the priceless air.

Description

Technical Field

[0001] The invention relates to the technical field of concrete, and in particular to a reinforced concrete lightweight wallboard and a preparation method thereof. Background Art

[0002] Concrete wall blocks are a kind of building material, and the manufacturing materials include fly ash, cement, lime, and animal foaming agent. The fly ash is vacuum dehydrated, the lime mixed powder is put into a slurry mixer, and cement and water are added to mix the slurry; then the animal foaming agent and water are put into a foam mixer and mixed with the slurry, and then put into a slurry mixer, mixed, and poured into a mold, steam cured, and the finished product is removed from the mold. Common concrete walls are made of bricks and poured concrete. The poured concrete wall is about 1 / 10 of ordinary concrete. The material used is foamed concrete, which can reduce the cost and increase the height of the floor. However, there are also many problems in pouring concrete walls. The concrete wall has a high density and cannot achieve the combination of lightweight and high strength. It is difficult for common concrete to meet the strength requirements on the basis of lightweight, and it loses lightweight on the basis of high strength, and does not have good performance in heat insulation and sound insulation. We provide a reinforced concrete lightweight wall panel and a preparation method thereof. Summary of the invention

[0003] The purpose of the present invention is to provide a reinforced concrete lightweight wall panel and a preparation method thereof in view of the above technical problems, which has good thermal insulation and sound insulation effects and has the advantages of high strength on the basis of light weight.

[0004] To achieve this purpose, the present invention provides a reinforced concrete lightweight wallboard and a preparation method thereof, which adopts the following technical embodiments:

[0005] A reinforced concrete lightweight wallboard, wherein the reinforced concrete lightweight wallboard is mainly composed of silicate cement: the components of the reinforced concrete lightweight wallboard mainly include: 20-30 parts of EPS polystyrene particles, 70-110 parts of silicate cement, 100-120 parts of ceramsite, 50-70 parts of ceramic sand, 7-12 parts of water, 0.05-0.1 parts of foaming agent, 1-5 parts of fiber, 0.5-2 parts of retarder, and 2-5 parts of additives; the foaming agent includes: triethylene propanolamine, hydroxypropyl methylcellulose, and sodium dodecylbenzene sulfonate; the retarder includes natural gypsum and calcium carbonate; the additive includes ferroferric oxide and sodium rosin acid;

[0006] The foaming agent comprises the following components in parts by mass: 1-5 parts of triethylene propanolamine, 60-79 parts of hydroxypropyl methylcellulose, and 20-35 parts of sodium dodecylbenzene sulfonate;

[0007] The retarder comprises the following components in parts by weight: 30-45 parts of calcium carbonate and 55-70 parts of natural gypsum;

[0008] The additive comprises the following components in parts by mass: 75-90 parts of ferrosoferric oxide and 10-25 parts of sodium rosinate.

[0009] Furthermore, the particle size of the ceramsite is 5-13 mm; the particle size of the ceramic sand is 0.5-3.5 mm.

[0010] Furthermore, the above-mentioned fiber is selected from at least one of carbon fiber and glass fiber.

[0011] A method for preparing a reinforced concrete lightweight wallboard, the specific operation steps comprising:

[0012] (1) The method for synthesizing lightweight concrete comprises the following steps:

[0013] S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives;

[0014] S2: weighing the prepared raw materials;

[0015] S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture;

[0016] S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete.

[0017] (2) The method for preparing the reinforced concrete lightweight wallboard comprises the following steps:

[0018] S5: Prepare the wall panel mold and evenly apply the release agent inside the mold;

[0019] S6: String high-strength steel bars onto the mold and tighten the steel bars using a hydraulic device;

[0020] S7: Add steel cages at both ends of the mold, bind the steel cages to the steel bars, and lay wire mesh between the two sets of steel cages;

[0021] S8: After laying the wire mesh, directly inject the lightweight concrete in step 4 into the mold, and vibrate while injecting to obtain the first layer of the wall panel;

[0022] S9: Lay the insulating foam material on the first layer of the wall panel, pour it again after laying, and let it stand for a while after pouring;

[0023] S10: demoulding the solidified wall panels, performing sandblasting after demoulding to remove excess concrete, and then performing secondary static treatment. During the secondary static treatment, the lightweight wall panels are cured to obtain lightweight concrete wall panels.

[0024] Furthermore, in step S9, the first standing time is 12 hours; and in step S10, the second standing time is 3-4 days.

[0025] Further, in step S7, the steel cage is composed of bent steel bars, and the steel bar diameter ranges from 15 to 40 mm.

[0026] Furthermore, in step S8, during the vibration process, the moving distance of the vibrating rod is less than 3.75 times of the vibration radius, and the vibration time is 20-30s.

[0027] Furthermore, in step S10, curing is performed during the second static period, and the curing includes maintaining the temperature and humidity of the concrete wall panels, wherein the temperature is maintained at 18-22° C. and the humidity is maintained at above 95%.

[0028] The present invention has at least the following beneficial effects:

[0029] The steel of the present invention has low density, high strength, and significant sound insulation and heat insulation effects. It adopts a combination of steel bars and lightweight concrete, and forms a bread-like honeycomb structure inside. The priceless air has the effect of heat preservation and sound insulation, and foaming agents, retarders, and additives are added to ordinary concrete to increase the impact resistance. There are no cracks on the surface of the wallboard in the middle and late stages, the thermal conductivity is low, and the strength is high;

[0030] The addition of ferroferric oxide as a concrete additive makes the concrete wall show better durability and stability;

[0031] The addition of sodium rosin acid as a concrete air-entraining agent improves the workability and lightweight of concrete, allowing the concrete to form honeycomb air bags during the mixing process, making the overall concrete wall lightweight, and the air sealed in the air bags improves the overall sound insulation and heat insulation effects.

[0032] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a density test comparison diagram of Example 1 of the present invention and C10 and C50 concrete;

[0034] Figure 2 This is a comparative relationship diagram of the compressive strength test of Example 1 of the present invention and C10 and C50 concrete;

[0035] Figure 3 This is a density test comparison diagram of Example 2 of the present invention and C10 and C50 concrete;

[0036] Figure 4 This is a comparative relationship diagram of the compressive strength test of Example 2 of the present invention and C10 and C50 concrete;

[0037] Figure 5 This is a comparison diagram of the sound insulation coefficient test of Example 2 of the present invention and C10 and C50 concrete;

[0038] Figure 6 This is a comparative relationship diagram of thermal resistance coefficient test of Example 2 of the present invention and C10 and C50 concrete;

[0039] Figure 7 This is a density test comparison diagram of the concrete wall panels of Example 3 of the present invention and C10 and C50;

[0040] Figure 8 The figure is a comparative relationship diagram of the compressive strength test of the concrete wall panels of Example 3 of the present invention and C10 and C50. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical embodiments and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The application principle of the present invention is described in detail below in conjunction with the accompanying drawings.

[0043] A reinforced concrete lightweight wallboard, wherein the reinforced concrete lightweight wallboard is mainly composed of silicate cement: the components of the reinforced concrete lightweight wallboard mainly include: 20-30 parts of EPS polystyrene particles, 70-110 parts of silicate cement, 100-120 parts of ceramsite, 50-70 parts of ceramic sand, 7-12 parts of water, 0.05-0.1 parts of foaming agent, 1-5 parts of fiber, 0.5-2 parts of retarder, and 2-5 parts of additives; the foaming agent includes: triethylene propanolamine, hydroxypropyl methylcellulose, and sodium dodecylbenzene sulfonate; the retarder includes natural gypsum and calcium carbonate; the additive includes ferroferric oxide and sodium rosin acid;

[0044] The foaming agent comprises the following components in parts by mass: 1-5 parts of triethylene propanolamine, 60-79 parts of hydroxypropyl methylcellulose, and 20-35 parts of sodium dodecylbenzene sulfonate;

[0045] The retarder comprises the following components by weight: 30-45 parts of calcium carbonate and 55-70 parts of natural gypsum; the retarder enables the concrete to maintain plasticity for a long time, facilitates pouring, improves construction efficiency, and does not adversely affect the various properties of the concrete in the later stage.

[0046] The additive comprises the following components in parts by mass: 75-90 parts of ferroferric oxide and 10-25 parts of sodium rosinate. The chemical formula of ferroferric oxide is Fe3O4, which exhibits better durability and stability as a concrete additive; sodium rosinate C20H29NaO2, as a concrete air entraining agent, improves the workability and lightness of concrete.

[0047] Furthermore, the particle size of the ceramsite is 5-13 mm; the particle size of the ceramic sand is 0.5-3.5 mm.

[0048] Furthermore, the above-mentioned fiber is selected from at least one of carbon fiber and glass fiber.

[0049] A method for preparing a reinforced concrete lightweight wallboard, the specific operation steps comprising:

[0050] (1) The method for synthesizing lightweight concrete comprises the following steps:

[0051] S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives;

[0052] S2: weighing the prepared raw materials;

[0053] S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture;

[0054] S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete.

[0055] (2) The method for preparing the reinforced concrete lightweight wallboard comprises the following steps:

[0056] S5: Prepare the wall panel mold and evenly apply the release agent inside the mold;

[0057] S6: String high-strength steel bars onto the mold and tighten the steel bars using a hydraulic device;

[0058] S7: Add steel cages at both ends of the mold, bind the steel cages to the steel bars, and lay wire mesh between the two sets of steel cages;

[0059] S8: After laying the wire mesh, directly inject the lightweight concrete in step 4 into the mold, and vibrate while injecting to obtain the first layer of the wall panel;

[0060] S9: Lay the insulating foam material on the first layer of the wall panel, pour it again after laying, and let it stand for a while after pouring;

[0061] S10: demoulding the solidified wall panels, performing sandblasting after demoulding to remove excess concrete, and then performing secondary static treatment. During the secondary static treatment, the lightweight wall panels are cured to obtain lightweight concrete wall panels.

[0062] Furthermore, in step S9, the first standing time is 12 hours; and in step S10, the second standing time is 3-4 days.

[0063] Further, in step S7, the steel cage is composed of bent steel bars, and the steel bar diameter ranges from 15 to 40 mm.

[0064] Furthermore, in step S8, during the vibration process, the moving distance of the vibrating rod is less than 3.75 times of the vibration radius, and the vibration time is 20-30s.

[0065] Furthermore, in step S10, curing is performed during the second static period, and the curing includes maintaining the temperature and humidity of the concrete wall panels, with the temperature being maintained at 18-22° C. and the humidity being maintained at above 95%.

[0066] Example 1

[0067] Reinforced concrete lightweight wall panels are mainly made of silicate cement: the ingredients of reinforced concrete lightweight wall panels mainly include: 25 parts of EPS polystyrene particles, 80 parts of silicate cement, 100 parts of ceramsite, 50 parts of ceramic sand, 8 parts of water, 0.1 parts of foaming agent, 1 part of fiber, 1 part of retarder, and 2 parts of additives;

[0068] The foaming agent includes the following components in parts by weight: 2 parts of triethylene propanolamine, 63 parts of hydroxypropyl methylcellulose, and 35 parts of sodium dodecylbenzene sulfonate;

[0069] The retarder includes the following components in parts by weight: 45 parts of calcium carbonate and 55 parts of natural gypsum;

[0070] The additives include the following components in parts by mass: 75 parts of ferrosoferric oxide and 25 parts of sodium rosinate.

[0071] A method for preparing a reinforced concrete lightweight wallboard, the specific operation steps comprising:

[0072] (1) The method for synthesizing lightweight concrete comprises the following steps:

[0073] S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives;

[0074] S2: weighing the prepared raw materials;

[0075] S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture;

[0076] S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete.

[0077] The experiment uses the same volume of Example 1 concrete and C10 and C50 concrete for testing and comparison, and the tests include density testing and compressive strength testing.

[0078] The experimental results show that:

[0079] The concrete prepared in Example 1 has low density, high strength, and good heat and sound insulation effects. Example 1 maintains a relatively low density at room temperature. The specific density is compared with the common concrete C10 and the common concrete C50. Figure 1 The compressive strength of the concrete prepared in Example 1 is also greatly improved. The specific compressive strength is compared with that of C10 concrete and C50 concrete. Figure 2 shown.

[0080] The experimental data of Example 1 are compared with those of C10 and C50, see Table 1.

[0081] Table 1. Parameter analysis data of C10 concrete, C50 concrete and Example 1

[0082]

[0083] Example 2

[0084] Reinforced concrete lightweight wall panels are mainly made of silicate cement: the ingredients of reinforced concrete lightweight wall panels mainly include: 30 parts of EPS polystyrene particles, 100 parts of silicate cement, 120 parts of ceramsite, 50 parts of ceramic sand, 10 parts of water, 0.1 parts of foaming agent, 2 parts of fiber, 1 part of retarder, and 2 parts of additives;

[0085] The foaming agent includes the following components in parts by mass: 5 parts of triethylene propanolamine, 60 parts of hydroxypropyl methylcellulose, and 35 parts of sodium dodecylbenzene sulfonate;

[0086] The retarder includes the following components in parts by weight: 30 parts of calcium carbonate and 70 parts of natural gypsum;

[0087] The additives include the following components in parts by mass: 75 parts of ferrosoferric oxide and 25 parts of sodium rosinate.

[0088] A method for preparing a reinforced concrete lightweight wallboard, the specific operation steps comprising:

[0089] (1) The method for synthesizing lightweight concrete comprises the following steps:

[0090] S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives;

[0091] S2: weighing the prepared raw materials;

[0092] S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture;

[0093] S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete.

[0094] The experiment uses the same volume of Example 1, Example 2 concrete and C10, C50 concrete for detection and comparison. The detection includes density detection, compressive strength detection, thermal resistance coefficient calculation, and sound insulation calculation. The thermal resistance value can be calculated by the formula R=(T2-T1) / P, where R is the thermal resistance value, T2 and T1 are the temperature difference at both ends of the object, and P is the power of the heat source; the calculation formula for concrete sound insulation is R=10lg(1 / τ), where τ is a small value, such as one thousandth or one ten-thousandth, representing the proportion of sound energy loss.

[0095] The experimental results show that:

[0096] The concrete prepared in Example 2 has low density, high strength, and good heat and sound insulation effects. Example 2 maintains a relatively low density at room temperature. The specific density is compared with the common concrete C10 and the common concrete C50. Figure 3 As shown; the specific compressive strength is compared with the common concrete C10 and the common concrete C50. Figure 4 As shown; the heat insulation and sound insulation effects of the concrete prepared in Example 2 have also been greatly improved, which is basically nearly 3 times higher than that of C10 concrete. The specific sound insulation effect is compared with C10 concrete and C50 concrete. Figure 5 As shown in the figure, the specific insulation effect is compared with C10 concrete and C50 concrete. Figure 6 shown.

[0097] The experimental data of Example 2 are compared with those of Example 1, C10 concrete and C50 concrete, see Table 2.

[0098] Table 2, C10, C50 and related parameter analysis data of Example 1 and Example 2

[0099]

[0100] Example 3

[0101] Reinforced concrete lightweight wall panels are mainly made of silicate cement: the ingredients of reinforced concrete lightweight wall panels mainly include: 30 parts of EPS polystyrene particles, 100 parts of silicate cement, 120 parts of ceramsite, 50 parts of ceramic sand, 10 parts of water, 0.1 parts of foaming agent, 2 parts of fiber, 1 part of retarder, and 2 parts of additives;

[0102] The foaming agent includes the following components in parts by mass: 5 parts of triethylene propanolamine, 60 parts of hydroxypropyl methylcellulose, and 35 parts of sodium dodecylbenzene sulfonate;

[0103] The retarder includes the following components in parts by weight: 30 parts of calcium carbonate and 70 parts of natural gypsum;

[0104] The additives include the following components in parts by mass: 75 parts of ferrosoferric oxide and 25 parts of sodium rosinate.

[0105] A method for preparing a reinforced concrete lightweight wallboard, the specific operation steps comprising:

[0106] (1) The method for synthesizing lightweight concrete comprises the following steps:

[0107] S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives;

[0108] S2: weighing the prepared raw materials;

[0109] S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture;

[0110] S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete.

[0111] (2) The method for preparing the reinforced concrete lightweight wallboard comprises the following steps:

[0112] S5: Prepare the wall panel mold and evenly apply the release agent inside the mold;

[0113] S6: String high-strength steel bars onto the mold and tighten the steel bars using a hydraulic device;

[0114] S7: Add steel cages at both ends of the mold, bind the steel cages to the steel bars, and lay wire mesh between the two sets of steel cages;

[0115] S8: After laying the wire mesh, directly inject the lightweight concrete in step 4 into the mold, and vibrate while injecting to obtain the first layer of the wall panel;

[0116] S9: Lay the insulating foam material on the first layer of the wall panel, pour it again after laying, and let it stand for a while after pouring;

[0117] S10: demoulding the solidified wall panels, performing sandblasting after demoulding to remove excess concrete, and then performing secondary static treatment. During the secondary static treatment, the lightweight wall panels are cured to obtain lightweight concrete wall panels.

[0118] The experimental results show that:

[0119] The reinforced concrete lightweight wallboard prepared in Example 3 has low density, high strength, and good heat insulation and sound insulation effects. Example 3 maintains a relatively low density at room temperature. The specific density is compared with the density of common concrete C10 and common concrete C50. Figure 7 The compressive strength of the reinforced concrete lightweight wallboard prepared in Example 3 is also greatly improved. The specific compressive strength is compared with that of the C10 and C50 concrete wallboards. Figure 8 Shown

[0120] The experimental data of Example 3 is compared with those of C10 wallboard and C50 wallboard, see Table 1

[0121] Table 3, C10, C50 and related parameter analysis data of Example 3

[0122]

[0123] The present invention discloses a reinforced concrete lightweight wallboard and a preparation method thereof. The prepared EPDM composition has high heat resistance and high tensile strength, and magnesium oxide is used as an activator to replace zinc oxide to avoid zinc in the product. The above embodiments are only used to illustrate but not limit the technical embodiments of the present invention. Relevant technicians in this field can make reasonable modifications or equivalent substitutions to the present invention, but any modifications and partial substitutions that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0124] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A reinforced concrete lightweight wall panel, characterized in that: Reinforced concrete lightweight wallboard is mainly made of silicate cement: the components of reinforced concrete lightweight wallboard mainly include: 20-30 parts of EPS polystyrene particles, 70-110 parts of silicate cement, 100-120 parts of ceramsite, 50-70 parts of ceramic sand, 7-12 parts of water, 0.05-0.1 parts of foaming agent, 1-5 parts of fiber, 0.5-2 parts of retarder, and 2-5 parts of additives; the foaming agent includes: triethylene propanolamine, hydroxypropyl methylcellulose, sodium dodecylbenzene sulfonate, the retarder includes natural gypsum and calcium carbonate, and the additives include ferroferric oxide and sodium rosin acid; The foaming agent comprises the following components in parts by mass: 1-5 parts of triethylene propanolamine, 60-79 parts of hydroxypropyl methylcellulose, and 20-35 parts of sodium dodecylbenzene sulfonate; The retarder comprises the following components in parts by weight: 30-45 parts of calcium carbonate and 55-70 parts of natural gypsum; The additive comprises the following components in parts by mass: 75-90 parts of ferrosoferric oxide and 10-25 parts of sodium rosinate.

2. A reinforced concrete lightweight wall panel according to claim 1, characterized in that: The particle size of the ceramsite is 5-13 mm; the particle size of the ceramic sand is 0.5-3.5 mm.

3. A reinforced concrete lightweight wall panel according to claim 1, characterized in that: The fiber is selected from at least one of carbon fiber and glass fiber.

4. A method for preparing a reinforced concrete lightweight wallboard, characterized in that: The specific steps include: (1) The method for synthesizing lightweight concrete comprises the following steps: S1: Prepare concrete making materials, mainly including: EPS polystyrene particles, Portland cement, ceramsite, ceramic sand, water, foaming agent, retarder, additives; S2: weighing the prepared raw materials; S3: Weighed water and silicate cement are put into a mixer and stirred for 5-7 minutes to obtain a gel mixture; S4; stir the gel mixture in step three again, add EPS polystyrene particles, ceramsite, ceramic sand, foaming agent, retarder and additives during the stirring process and stir again, the second stirring time is 3-4min to obtain lightweight concrete. (2) The method for preparing the reinforced concrete lightweight wallboard comprises the following steps: S5: Prepare the wall panel mold and evenly apply the release agent inside the mold; S6: String high-strength steel bars onto the mold and tighten the steel bars using a hydraulic device; S7: Add steel cages at both ends of the mold, bind the steel cages to the steel bars, and lay wire mesh between the two sets of steel cages; S8: After laying the wire mesh, directly inject the lightweight concrete in step 4 into the mold, and vibrate while injecting to obtain the first layer of the wall panel; S9: Lay the insulating foam material on the first layer of the wall panel, pour it again after laying, and let it stand for a while after pouring; S10: demoulding the solidified wall panels, performing sandblasting after demoulding to remove excess concrete, and then performing secondary static treatment. During the secondary static treatment, the lightweight wall panels are cured to obtain lightweight concrete wall panels.

5. The method for preparing a reinforced concrete lightweight wallboard according to claim 4, characterized in that: In step S9, the first standing time is 12 hours; in step S10, the second standing time is 3-4 days.

6. The method for preparing a reinforced concrete lightweight wallboard according to claim 4, characterized in that: In step S7, the steel cage is formed by bending steel bars, and the steel bar diameter ranges from 15 to 40 mm.

7. The method for preparing a reinforced concrete lightweight wallboard according to claim 4, characterized in that: In step S8, during the vibration process, the moving distance of the vibrating rod is less than 3.75 times of the vibration radius, and the vibration time is 20-30s.

8. The method for preparing a reinforced concrete lightweight wallboard according to claim 4, characterized in that: In step S10, curing is performed during the second static period, and the curing includes maintaining the temperature and humidity of the concrete wall panels. The temperature is maintained at 18-22° C., and the humidity is maintained at more than 95%.

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